@article{MET_1987__34_176106,
     author = {V. Dupac},
     title = {Quasi-Isotonic {Regression} and {Stochastic} {Approximation.}},
     journal = {Metrika},
     pages = {117--123},
     year = {1987},
     volume = {34},
     zbl = {0655.62085},
     url = {http://geodesic.mathdoc.fr/item/MET_1987__34_176106/}
}